<%--
  User: str
  DateTime: 2021/11/4 9:10
  Description: 
--%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" isErrorPage="true" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<% response.setStatus(HttpServletResponse.SC_OK);%>
<c:set var="ctxPath" value="${pageContext.request.contextPath}"/>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>404</title>
    <style>
        html, body {
            padding: 0;
            margin: 0;
            height: 100%;
        }

        .box {
            width: 100%;
            height: 100%;
            background-color: wheat;
            text-align: center; /*文本水平居中*/
            padding-top: 15%;
        }
    </style>
</head>
<body>

<div class="box">
    <h1>404</h1>
    <h1>没有该页面...</h1>
    <% if (session.getAttribute("user") != null) {
    %>
    <span id="counter"></span>秒后 <a href="http://localhost:8080/user/index#">返回首页</a>
    <%
    } else {
    %>
    <span id="counter"></span>秒后 <a href="http://localhost:8080">返回登录页</a>
    <%
        }
    %>

</div>

<script>
    var $counter = document.getElementById('counter');

    function countDown(secs) {
        $counter.innerText = secs;
        if (--secs > 0) {
            setTimeout("countDown(" + secs + ")", 1000);
        }
        if (secs == 0) {
            location.href = 'http://localhost:8080';
        }
    }

    countDown(5);
</script>

</body>
</html>